Rainwater harvesting is the practice of collecting and storing rain for reuse, rather than letting the water run off and be absorbed into the ground or channeled into drains, streams, or rivers.

Water conservation is a necessity today given the fact that the groundwater levels are receding.

The water is collected from areas like paths or roofs of the buildings.Then, through a series of pipes the water is routed to the storage units, which can be anything from specially constructed tanks or open water bodies like ponds.

Filtration processes should be put in place as the rain water collected from the roof & other pathways won't be completely clean.

Finally, the system would require a pump to direct water, a flow meter, and backflow prevention system, all of which would need to be hooked up to a power source.